"Swine Flu"/"Bird Flu"/SARS is spread by airborne/particle and that didn't exactly make it to "Madagascar". Even if Ebola spreads this way, it still has to outdo the terror of THE 'FLU. Guess how many people "the 'flu" kills worldwide every single year? hint: a lot more than Ebola.
The reason so many people no doubt catch it in Africa is because an infected person develops symptoms like sweating, bleeding, and diarrhea, all of which are loaded with the virus. Unless you burn their bedsheets and stay away from any of that stuff including touching them directly, you're likely to contract. No wonder people have been spreading it when they want to embalm and bury bodies instead of cremating them, and haven't the proper facilities to section a patient off from others properly, or the resources to autoclave everything a patient had contact with after use.
Source of knowledge : actually working in a disease control and diagnosis lab, including "Category 3" diseases (i.e. the most dangerous ones).